Wall damp treatment in Alkharj: before summer & rain season

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Why wall damp treatment differs in Alkharj

Main roads in or near Alkharj: King Abdullah Road. The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data).

Team note on Alkharj: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins..

Wall damp in Alkharj is first checked against the site's elevation and the seasons that bring moisture. The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data), which means the town is not a low-lying hollow where water pools, but it still sees heavy summer heat followed by sudden rain. Technicians therefore look first at the wall base, the lowest courses, and any area where rainwater runs off a roof or paving onto the wall. Damp that appears only after a storm, or a tide-line of salts at skirting height, usually points to rising or splashing water rather than condensation inside the room. Checking these signs before the rain season helps decide whether the wall needs a surface treatment, a membrane, or simply better drainage at the outside edge.

Some points can only be settled at the site visit. The technician has to see whether the wall is backed by soil, whether there is a basement, and how far the damp has travelled up the plaster. Crack patterns, the state of old renders, and the condition of the roof edge all affect the approach. Quotes depend on the area and the method chosen, so the rates below are only a guide. Basement waterproofing typically falls between SAR 50 and SAR 150 per m², bathroom waterproofing between SAR 15 and SAR 40 per m², and crack injection between SAR 40 and SAR 120 per metre. Epoxy coating runs from SAR 35 to SAR 90 per m², spray foam from SAR 20 to SAR 45 per m², and liquid roof waterproofing from SAR 8 to SAR 25 per m². The final figure is set only after measuring on site.

To help the technician, it is useful to have ready a short note of when the damp appears, whether it is worse after rain, and which rooms are affected. Photographs of the wall at night or after a shower can show moisture more clearly than the day view. Note whether the wall sits against soil, a basement, a water tank, or an open roof, since a tank internal coating (SAR 25 to SAR 60 per m²) and XPS boards (SAR 12 to SAR 30 per m²) are chosen for different conditions. Tell the technician about any past repairs, paint that peels, or plaster that crumbles. The clearer this history, the more precisely the visit can match the treatment to the wall.

Checks before summer and before the rain season catch problems while they are still small.

When do you need wall damp treatment?

These are the signs most often linked to wall damp treatment:

• A musty smell
• Peeling paint and salt marks
• Black spots on the wall

Where the problem usually comes from

• A leaking pipe — we check this before anything else.
• Condensation — we check this before anything else.
• Rising damp from the ground.

Tools and methods, and when we use them

The steps in order

1. Moisture readings: Readings are taken in a grid across the wall.
2. Finding the cause: Pipe, condensation or rising damp.
3. Treatment: The cause is treated before the finish.
4. Finishing: Plaster and paint after the wall has dried.

Facts and costs — Alkharj

Questions from Alkharj

Common mistakes we see

• Painting over damp

What you receive

You receive: the cause and the proposed treatment, in a technical report with a verification code.